<template>
    <div>
        <!-- 面包屑导航区 -->
<el-breadcrumb separator="/">
  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item><a href="/">用户管理</a></el-breadcrumb-item>
  <el-breadcrumb-item>用户列表</el-breadcrumb-item>
</el-breadcrumb>
<!-- 卡片视图区域 -->
<el-card class="box-card">
 <!-- 搜索与添加区域 -->
 
<el-row :gutter="20">
<el-col :span="8">  
    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
    <el-button @click="getUserList" slot="append" icon="el-icon-search"></el-button>
  </el-input>
</el-col>
  <el-col :span="4">
      <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
  </el-col>
</el-row>
<!-- 用户列表区域 -->
<el-table :data="userlist" border stripe>
<el-table-column type="index"></el-table-column>
<el-table-column label="姓名" prop="username"></el-table-column>
<el-table-column label="邮箱" prop="email"></el-table-column>
<el-table-column label="电话" prop="mobile"></el-table-column>
<el-table-column label="角色" prop="role_name"></el-table-column>
<el-table-column label="状态">
    <template slot-scope="scope">
            <!-- {{scope.row}} -->
       <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
    </template>
</el-table-column>
<el-table-column label="操作" width="180px" >
<template slot-scope="scope">
<!-- 修改按钮 -->
<el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
<!-- 删除按钮 -->
<el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
<!-- 分配角色按钮 -->
   <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
<el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>      
    </el-tooltip>
    </template>
</el-table-column>
</el-table>
<!-- 分页区域 -->
 <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
</el-card>
<!-- 添加用户的对话框 -->
<el-dialog
  title="添加用户"
  :visible.sync="addDialogVisible"
  width="50%" @close="addDialogClosed">
  <!-- 内容主体区域 -->
  <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
  <el-form-item label="用户名" prop="username">
    <el-input v-model="addForm.username"></el-input>
  </el-form-item>
   <el-form-item label="密码" prop="password">
    <el-input v-model="addForm.password"></el-input>
  </el-form-item>
   <el-form-item label="邮箱" prop="email">
    <el-input v-model="addForm.email"></el-input>
  </el-form-item>
   <el-form-item label="手机" prop="mobile">
    <el-input v-model="addForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  <!-- 底部区域 -->
  <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
</el-dialog>
<!-- 修改用户的对话框 -->
<el-dialog
  title="修改用户"
  :visible.sync="editDialogVisible"
  width="50%" @close="editDialogClosed">
  <el-form ref="editFormRef" :model="editForm" :rules="editFormRules" label-width="70px">
  <el-form-item label="用户名">
    <el-input v-model="editForm.username" disabled></el-input>
  </el-form-item>

  <el-form-item label="邮箱" prop="email">
    <el-input v-model="editForm.email"></el-input>
  </el-form-item>

  <el-form-item label="手机号" prop="mobile">
    <el-input v-model="editForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
</el-dialog>
<!-- 分配角色的对话框 -->
<el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="50%" @close="setRoleDialogClosed">
  <div>
    <p>当前的用户: {{userInfo.username}}</p>
    <p>当前的角色: {{userInfo.role_name}}</p>
    <p>分配新的角色: 
        <el-select v-model="selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
    </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="savaRoleInfo">确 定</el-button>
  </span>
</el-dialog>
    </div>
</template>
<script>
import { async } from 'q';
import { log } from 'util';
export default {
    data(){
        //验证邮箱的规则
        var checkEmail = (rule, value, cb) => {
            //验证邮箱的正则表达式
            const regREmail=/^[A-Za-z0-9\u4e00-\u9fa5]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/
            if(regREmail.test(value)){
                //合法邮箱
                return cb()
            }
             cb(new Error('请输入合法的邮箱'))
        }
        //验证手机号的规则
        var checkMobile = (rule, value, cb) => {
            //定义验证手机号的正则表达式
            const regMobile=/^1[3456789]\d{9}$/
             if(regMobile.test(value)){
            return cb()
        }
        cb(new Error('请输入合法的手机号'))
        }
        return{
//获取用户列表的参数对象
    queryInfo:{
        query:'',
        //当前的页数
        pagenum:1,
        //当前每页显示多少条数据
        pagesize:2
    },
    userlist:[],
    total:0,
    //控制添加用户对话框的显示与隐藏
    addDialogVisible:false,
    //添加用户的表单数据
    addForm:{
        username:'',
        password:'',
        email:'',
        mobile:''
    },
    //添加表单的验证规则对象
    addFormRules:{
        username:[
            {required :true, message:'请输入用户名',trigger:'blur'},{min: 3, max: 10, message:'用户名的长度在3~10个字符之间',trigger:'blur'}
        ],
        password:[
            {required :true, message:'请输入密码',trigger:'blur'},{min: 6, max: 15, message:'用户名的长度在6~15个字符之间',trigger:'blur'} 
        ],
        email:[
            {required :true, message:'请输入邮箱',trigger:'blur'},{validator:checkEmail,trigger:'blur'}
        ],
        mobile:[
            {required :true, message:'请输入手机号',trigger:'blur',},{validator:checkMobile,trigger:'blur'}
        ]
    },
    //控制修改用户对话框的显示与隐藏
    editDialogVisible:false,
    //查询到的用户信息对象
    editForm:{},
    //修改表单验证规则对象
    editFormRules:{
        email:[
              {required :true, message:'请输入邮箱',trigger:'blur'},{validator:checkEmail,trigger:'blur'}
        ],
          mobile:[
            {required :true, message:'请输入手机号',trigger:'blur',},{validator:checkMobile,trigger:'blur'}
        ]

    },
    //控制分配角色对话框的显示与隐藏
    setRoleDialogVisible:false,
    //需要被分配角色的用户信息
    userInfo:'',
    //所有角色的数据列表
    rolesList:[],
    //已选中的id值
    selectedRoleId:''
        }
    },
    created(){
        this.getUserList()
    },
    methods: {
      async getUserList(){
          const {data:res}= await this.$http.get('users',{params:this.queryInfo})
        //   console.log(res);
        if(res.meta.status!==200)  {
          return  this.$message.error('获取用户列表失败!')
        } 
        this.userlist=res.data.users
        this.total=res.data.total
      },
    //   监听pagesize 改变的事件
      handleSizeChange(newSize){
        //   console.log(newSize);
          this.queryInfo.pagesize=newSize
          this.getUserList()
          
      },
    //   监听页码值 改变的事件
      handleCurrentChange(newPage){
        //   console.log(newPage);
          this.queryInfo.pagenum=newPage
          this.getUserList()
      },
      //监听switch开关状态的改变
      async userStateChanged(userinfo){
        //   console.log(userinfo);
          const {data:res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
          if(res.meta.status!==200) {
              userinfo.mg_state=!userinfo.mg_state
              return this.$message.error('更新用户状态失败')
          }
          this.$message.success('更新用户状态成功')
      },
      //监听添加用户对话框关闭事件
      addDialogClosed(){
          this.$refs.addFormRef.resetFields()
      },
      //点击按钮添加新用户
      addUser(){
          this.$refs.addFormRef.validate(async valid=>{
            //   console.log(valid);
            if(!valid) return 
            //可以发起添加用户的网络请求
           const {data: res}=await this.$http.post('users',this.addForm)
           if(res.meta.status!==201) {
              return this.$message.error('添加用户失败')
           }
            this.$message.success('添加用户成功')
            //隐藏添加的对话框
            this.addDialogVisible=false
            //重新获取用户列表数据
            this.getUserList()
              
          })
      },
      //展示编辑用户的对话框
      async showEditDialog(id){
        //   console.log(id);
        const {data:res}=await this.$http.get('users/' +id)
        if(res.meta.status!==200){
            return this.$message.error('查询用户信息失败')
        }
          this.editForm=res.data
          this.editDialogVisible=true
      },
      //监听修改用户对话框的关闭事件
      editDialogClosed(){
          this.$refs.editFormRef.resetFields()
      },
      //修改用户信息并提交
      editUserInfo(){
          this.$refs.editFormRef.validate(async valid=>{
            //   console.log(valid);
            if(!valid) return
            //发送修改用户信息的数据请求
            // console.log(res);
            
          const {data: res}=await this.$http.put('users/'+this.editForm.id,
          { email: this.editForm.email, 
            mobile: this.editForm.mobile})
        
          // console.log(res);
          // console.log(this.editForm.id);
          
          
          if(res.meta.status!==200) {
              return this.$message.error('更新用户信息失败')
          }
          //关闭对话框
          this.editDialogVisible=false
          //刷新数据列表
          this.getUserList()
          //提示修改成功
          this.$message.success('更新用户信息成功')
            })
      },
      //根据id删除对应的用户信息
     async removeUserById(id){
          //弹框询问用户是否删除数据
        const confirmResult=await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err=>err)
        //如果用户确认删除 则返回值为字符串confirm
        //如果用户取消删除 则返回值为字符串cancel
// console.log(res);
if(confirmResult!=='confirm'){
    return this.$message.info('已经取消删除')
}
 const {data:res}= await this.$http.delete('users/'+id)
    if(res.meta.status!==200){
        return this.$message.error('删除用户失败')
    }
    this.$message.success('删除用户成功')
    this.getUserList()
      },
      //展示分配角色的对话框
      async setRole(userInfo) {
        this.userInfo=userInfo
        //在展示对话框之前 获取所有角色的列表
        const {data:res}= await this.$http.get('roles')
        // console.log(res);
        if(res.meta.status!==200){
          return this.$message.error('获取角色列表失败')
        }
        this.rolesList=res.data
        this.setRoleDialogVisible=true
      },
      //点击按钮 分配角色
      async savaRoleInfo(){
        if(!this.selectedRoleId){
          return this.$message.error('请选择要分配的角色')
        }
        const {data:res}= await this.$http.put(`users/${this.userInfo.id}/role`,
        {
          rid:this.selectedRoleId
        })
        if(res.meta.status!==200){
          return this.$message.error('更新角色失败!')
        }
        this.$message.success('更新角色成功!')
        this.getUserList()
        this.setRoleDialogVisible=false
      },
      //监听分配角色对话框的关闭事件
      setRoleDialogClosed(){
        this.selectedRoleId='',
        this.userInfo={}
      }
    },
}
</script>
<style lang="less" scoped>

</style>